Door-lock-marking gage.



PATENTED MAR 14, 1905.

A.- GARLSON. DOOR LOCK MARKING GAGE. APPLICATION FILED NOV. 19, 1904.

UNITED STATES Patented March 14, 1905.

PATENT OFFICE.

DOOR-LOCK-MAldKING GAGE.

SPECIFICATION forming part of Letters Patent No. 784,834, dated March 14, 1905.

Application filed November 18, 1904. Serial No. 233,253.

To all whom it may concern.-

Be it known that 1, ANDREW CARLsoN, a citizen of the United States of America. residing at Wakefield, in the borough .of Bronx, county of lVestchester, city and State of New York, have invented an Improvement in Door-Lock- Marking Gages, of which the following is a specification.

My invention relates to lock-marking gages; and the object thereof is the provision of an instrument of simple and cheap construction by the use of which all necessary marks used in setting mortise-locks in doors may be made and also all the necessary marks for properly setting the strike-plates in door-jambs.

In carrying out my invention I employ a front piece which is correspondingly cut away on opposite edges, gage members slidably adj ustable in the cut-away portions of the front piece, means for securing said gage members in any desired position, a plate secured on the face of the front piece at one end thereof, a side piece having a cut-away portion on one edge thereof and a longitudinal recess in said out away portion, gage blocks ad justably mounted in said recess and having transverse openings therein, means for securing said gage-blocks in any desired position, markers adjustably mounted in one end of said side piece, and means pivotally connecting said front and side pieces together at right angles to one another, all of which will be hereinafter more particularly described.

In the drawings, Figure 1 is a side elevation of my improved door-look-marking gage. Fig. 2 is a rear elevation, and Fig. 3 a plan, of the same. Fig. 4 is a sectional elevation through the end of the instrument in which the markers are adjustably mounted. Fig. 5 is a section and partial plan of my improved gage, showing the markers against the doorjamb.

(t represents the front piece, which is of general rectangular outline and may be made of wood or any other suitable material. In correspondingly opposite positions the long edges of the front piece (6 are cut away, as indicated at 2, and in the cut-away portions guide-bars b are secured in a central longitudinal position.

0 0 represent gage members whose width is preferably the depth of the cut-away portions in the edges of the front piece a, and these gage members 0 c are slidably adjustable on the guide-bars Z) and may be held in any desired position therein by means of the clampscrews (Z (Z, which pass through the longitudinal slots 3 in the gage members 0 c and into the edges of the cut-away portions 2 of the front piece a.

At the end of the front piece a opposite that in which the cut-away portions 2 are made and on one face thereof a plate corresponding in outline to the end of the front piece, is fixed by means of the screws 5, and the inner edge of this plate 0 is provided with a shoulder 4, whose function will be hereinafter set forth.

f represents a side piece which is also of general rectangular outline and is preferably somewhat shorter than the front piece a. A portion of one of the long edges of the side piece 7' is cut away, as indicated at 6, and the face of this cut-away portion is provided with a longitudinal recess 7, in which are adjustably mounted the gage-blocks y, It, and i, having therein the transverse openings 8 9 10, respectively. The exterior portions of the gageblochs g It c' are preferably of the same thickness as the side piece f, and the reduced portions or ends of these gage-blocks which extend within the recesses 7 are provided, respectively,with the slots 11,12, and 13,through which the screws let, 15, and 16, respectively, pass from one side of the side piece into the other side and by means of which the gageblocks maybe adjusted and secured in the side piece in any desired position. On the end of the side piece f opposite that in which the cut-away portion is made there is a plate Z, passing around the corners of this end of the side piece and secured in position by means of the screws 17 passing through the same and into the edges of the side piece.

The plate 6 is provided with a slot 18, and beneath the plate the-end of the side piece is recessed, as indicated at 19, and in this recess 19 I prefer to employ screws 20 21, passing from opposite sides through the plate Z into a transverse plate 22, fixed in the sides of the recess 19. Upon these screws 20 21 markers m a are mounted and extend through the slot 18 in the plate Z.

The front piece a and the side piece f are adapted to be pivotall y connected together by means of a screw r passing through the front piece a and into the edge of the side piece 7" or otherwise, as may be desired, so that when in position the side piece f is at right angles to the front piece a and the end of one edge of the side piecef abuts against the shoulder 4 of the plate 0, secured in the front piece a.

1n the use of the instrument the mortiselock is placed with its upper edge in alinement with the short edge of the cut-away portion 2 in the front piece a, and either one or the other of the gage members 0, as may be convenient, is adjusted to that position in which the lower edge of the mortise-lock is in alinement with the lower edge of the gage member 0 which is employed, as indicated at 23 in dotted lines, Fig. 1. Vith the lock in this position the gage-blocks r it, and v1 or any of them which may be required are adjusted to the position in which the transverse openings therein correspond with the respective positions of the knob-spindle and keyholes for the lock, in which positions the respective gage-blocks are secured. The instrument being adjusted in this manner, it will be apparent that the necessary markings for the knob-spindle and keyholes for any number of similar locks may be made without readjusting the instrument, the instrument being placed against the door, as indicated in Fig. 3, wherein a portion of the door is shown in dotted lines. This being-done, the markers on and w are adjusted to the position in which the marks for the long sides of the face of the mortise-locks and the strike-plate are to be made.

In making the marks for the face of the mortise-lock in the edge of the door the instrument is used in the position shown in Fig. 2 that is to say, the edge of the side piece f is against the shoulder 41: in the plate a and the plate a is placed against the side of the door, as indicated at 24 in dotted lines, Fig. 1, whereas in making the marks for the long sides of the strike-plate the side piece f is turned to a position in which the edge thereof adjacent to the end in which the markers are mounted is free from the edge of the front piece a in order that the edge of the sidepiece f may be employed as a guide to be moved along the rabbet of the door-jamb 25 in making these marks, as illustrated in Fig. 5. It will thus be seen that by the use of the instrument in this way the lock and strike-plate may be so placed that the necessary play between the edge of the door and the rabbet on the door-jamb will be provided for the proper closing of the door and the operating of the latch of the lock.

I claim as my invention 1. A door-lock-marking gage comprising a front piece having a guide-bar in each side of the same, a gage member slidaloly adjustable on each guide-bar, means for securing the gage members in any desired position, a side piece, gage-blocks having transverse openings therein and adjustably mounted in the edge of the said side piece, means for securing said gage-blocks in any desired position and means for securing said side and front pieces together at right angles to one another.

2. A door-lock-marking gage comprising a front piece having correspondingly cut-away portions along opposite edges and a guide bar in each cut-away portion, a gage member slidably adjustable on each guide-bar, means for securing the gage members in any position, a side piece also having a cut-away portion and a longitudinal recess therein, gage-blocks having transverse openings therein and adjustably mounted in the said recess, means for securing said gage-blocks in any desired position and means for securing said front and side pieces together at right angles to one another.

3. A door-lock-marking gage comprising a front piece having correspondingly cut-away portions along opposite edges, a guide-bar in each cut-away portion, a gage member slidably adjustable on each guide-bar, means for securing the gage members in any position, a side piece also having a cut-away portion and a longitudinal recess therein, gage-blocks having transverse openings therein and adjustably mounted in the said recess, means for securing said gage-blocks in any desired position and means for marking the edge of the door for the sides of the face of the lock and for marking the door-jamb for the sides of the strike-plate, so that these parts may bear the correct relative positions to one another.

4. A door-lock-marking gage comprising means for indicating the positions of the upper and lower edges of the face of the lock, means for indicating the positions of the key and other holes of the lock and means for marking the edge of the door for the sides of the face of the lock and for marking the doorjamb for the sides of the strike-plates so that these parts may bear the correct relative positions to one another.

5. A door-lock-marking gage comprising a front piece, a side piece, means for registering the upper and loWer edges of the face of the lock, means for registering the key andother holes in the lock, means for securing the said front and side pieces pivotally together, a plate mounted on one face of the front piece at one end thereof and markers adjustably mounted in the end of the side piece which is adjacent to and adapted to engage'a shoulder in the lower edge of the said plate. 1o

Signed by me this 14th day of November,

ANDREW CARLSON.

Witnesses:

GEO. 'l. PINCKNEY, BERTHA M. ALLEN. 

